A bike has been in a neighborhood tree for a month now. The reason is unclear(?!). But I figured a month was long enough to leave it before claiming it. It's a 19" Mongoose Crossway 450-- not the greatest bike in the world, but a steel frameset, wheels with steel spokes, and Acera derailleurs. I haven't done too much inspection, but the headset and hubs seem fine, so I'm hopeful! I'm planning to fix it up for a coworker who's wanted a bike, but hasn't wanted to buy a new one. I'll probably get a new stem, bars, chain and seat, and try to salvage as much of the rest as I can. I'll post the picture in a minute.